The sample included 29 healthy competitive male distance runners. Bilateral measurements were taken for selected variables of the talocalcaneal flexibility by means of a mechanical goniometer, and of the peak isokinetic knee strength on a Cybex II device. The frontal and horizontal plane motions of the lower limbs of the subjects were recorded by high speed filming and videotaping while they were running on a motor driven treadmill at their training pace under two conditions: with running shoes and barefoot. A detailed description of each runner's history was obtained and bilateral dominance characteristics were determined. Significant functional asymmetries were found for subtalar joint flexibility (eversion, inversion, and eversion/inversion ratio) and peak isokinetic knee strength (flexion, extension, total, and flexion/extension ratio). Significant kinematic asymmetries were revealed during the foot support phase in lower leg angle, rearfoot angle, mediolateral velocity of the foot, and in some temporal parameters. The two running conditions differed significantly only for the pretouchdown phase of support. Significant trends of association were identified between selected components of the lower limb functional and kinematical asymmetries which were characterized by consistent laterality patterns. Multivariate asymmetry components and running injury patterns were independent. Only asymmetries in foot pronation during barefoot running tended to significantly differentiate between runners grouped by injury incidence. The phenomenon of functional and kinematic asymmetries in runners is warranted.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.75891 |
| Date | January 1988 |
| Creators | Vagenas, George |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Doctor of Philosophy (Department of Physical Education.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 000913066, proquestno: AAINL52210, Theses scanned by UMI/ProQuest. |
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